Early instars of this Caterpillar are green with a
forward-curving dark brown tail-horn.
Later instars caterpillars develop diagonal white stripes
on the side of each segment and the horn curves backward.
There is a brown form of later instars for which
the diagonal stripes are less conspicuous.
The caterpillars usually rest by day on the undersides of the
leaves of foodplants. They have been found feeding on :